WE CAN NOT GET THE SCAN TO WORK. IT KEEPS COMING BACK NO AUTHENTICATION.

is that scan to email? not network scan?

there is a firmware update too before scanning will work. Call your support and get the firmware.

This is a firewall issue I had the same trouble on XP just last week. Also sometimes Antivirus program could be blocking the IP.

SAMSUNG HAS CONFIRMED THAT SCANNING WILL NOT WORK WITH THE VISTA "HOME" ADDITION. THEY STATED THERE IS NOTHING THEY CAN DO THAT IT IS A MICRO SOFT ISSUE AND THEY MAY HAVE A FIX WITH SERVICE PAK 1